Vacuum cleaner



FIG. 1 is a perspective view of a vacuum cleaner, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged partial perspective view of the wheel in FIG. 1.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM We claim the ornamental design for a vacuum cleaner, as shown and described. 